Cooling Crystallizers for Dextrose Monohydrate

The DSSE Horizontal Cooling Crystallizers are designed for the crystallization of dextrose monohydrate with fully refined high DE liquid dextrose as feed material. It can be utilized in either batch or continuous process. The concentrated and pre-cooled liquid dextrose is fed direct to the crystallizer (batch operation), or to a mixing tank before entering the crystallizer (continuous operation). After crystallisation the crystal mass is led to a centrifuge feeder mixer, (and also the mixing tank if continuous operation).

Agitation and carefully controlled cooling ensure correct super-saturation and maximum crystal growth. A big cooling surface relative to the product volume enables operation with a small temperature difference between the product and the cooling water. A small temperature difference reduces formation of dextrose crusts on the cooling surfaces to a minimum.
Especially the DSSE Horizontal Cooling Crystallizer 50 m3 has been designed to prevent settling of crystals and formation of dextrose crusts on cold surfaces. The agitator is designed to be strong and resistant to fatigue.

Depending on the production requirements two or more crystallizers can be arranged and connected for continuous or semi-continuous operation. The capacity depends largely on the quality of the liquid dextrose syrup as feed material as well as other process parameters.

DSSE Horizontal Cooling Crystallizer 25 m3

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Technical Data

DSSE Horizontal Cooling Crystallizer 50 m3

Patent pending



Technical Data


DSSE Horizontal Cooling Crystallizer 50 m3

Functionality statement on DSSE horizontal 50 m3 crystallizers

November 10th 2015

DSSE A/S of Birkeroed Denmark has in March 2012 and May 2012 delivered totally 6 of DSSE 50 m3 new developed horizontal crystallizers to Amylum Bulgaria-part of Tate and Lyle, now part of ADM.

The equipment was delivered in due time and according to agreement.

The design criteria’s were:

The equipment has been in continuously operation since end 2012, and the above design criteria’s have all been fulfilled.

Only few maintenance stops have been performed.

A typical maintenance stop has been for check of internals and eventually melting of crusts on cooling coils. Such a stop requires typically max 6 hours until full capacity is reached again.
The period between stops exceeds several months.